Gustav liebait



(No Model.)

Ga LIEBAU- WALL 0R PARTITION.

No. 564,205. Patented Jul 21, 1896.

UNITED STATES I PATENT OFFICE.

GUSTAV LIEBAU,- OF NEW YORK, N. Y.

WALL OR PARTITION.

SPECIFICATION forming part of Letters Patent No. 564,205, dated July 21,1896. Application filed July 25, 1895. Serial No. 557,088. (No model.)

To all whom, it may concern.-

Be it known that I, GUSTAV LIE'BAU, a subject of the Emperor of Germany,and aresident of New York, in the county of New York and State of NewYork, have invented certain new and useful Improvements in Walls andPartitions, of which the following is a specification.

This invention'relates to certain new and useful improvements in wallsand partitions, and to the bricks or building-blocks used in theconstruction thereof, the object being to produce a light thin fi-re andsound proof wall which shall combine said qualities with strength andrigidity.

To these ends, therefore, my said invention consists in a brick orbuilding-block comprising a comparatively thin body having flaringsides, and a comparatively thick longitudinal dovetail tongue orprojection; in modifications of such bricks or blocks for the upper andlower courses and for the ends of a wall; in a wall or partitionconstructed of such bricks or blocks; and in the details ofconstruction, all as hereinafter more particularly described, andpointed out in the claims.

Referring to the accompanying drawings, forming a part hereof, in thefigures of which like parts are similarly designated, Figure 1 is aperspective view of a wall or partition constructed in accordance withmy invention,

and showing the modifications of the bricks referred to; and Fig. 2 is aperspective view of a brick.

The brick or building-block is formed of any usual and well-knownmaterial, such as earth, clay, plaster-boards, terra-cotta lumber, wood,&c., and preferably consists of the comparatively thin and wide body a,having the flaring sides a, and the comparatively narrow longitudinaldovetail tongue or projection 1), extending above the body a to a heightgreater than the thickness of said body. I also prefer to provide saidbody on its broad or tongue side with a series of channels c,semicircular or of other contour, and for a purpose to be presentlyexplained.

In the construction of walls and partitions obviously the top and bottomcourses should be flush and level, and as the wall is laid in bond thebricks next to the main walls, &c.,

on alternate courses should be but half the length of the bricks used inthe body of the wall, and for these purposes the brick shown in Fig. 2may be sawed or broken off, or a special form of brick may be made, asshown at cl and d in Fig. 1. As there shown, the bricks d are formedwith one straight or flush edge e, and the bricks d are but half thelength of the bricks used in the body of the wall; both, however, inother respects conforming to the construction already described.

In laying the wall or partition, as shown in Fig. 1, the bricks areoppositely disposed on each course, with the dovetail sides of thetongue or projection 17 of one brick engaging the flaring sides a of thebodies of the bricks on the courses above and below, thereby making fourjoints or points of union, "0'. 6., one on each of the flaring sides andone on each side of the dovetail tongue, thus producing a firmmechanical union, keying all portions of the wall together, andrendering mortar or cement unnecessary. I, however, prefer to usemortar, cement, or other binding material f, applying the same betweenthe clovetailed sides of the tongue I) and the flaring sides a of thebodies of the bricks, as clearly shown.

As the tongues 19 are preferably thicker than the bodies a, when thebricks are flush on their outer faces, there will remain interior spacesbetween such bricks, in which spaces may be inserted strips f of felt,paper, wood, or analogous insulating material, which not only preventsthe passage of sound from one side of the structure to the other, butalso equally prevents the passage of heat and cold. The attainment ofboth of these objects is also enhanced by the grooves or channels 0,which preferably do not coincide, as shown, thus distributing thedead-air space over a wider area. Said channels further serve to makethe bricks and the walls much lighter, and where this is a desideratumthe bricks may be hollow or perforated.

Upon the face of the tongue I), and upon the opposite and narrow face ofthe body a, may be formed longitudinal grooves or channels h, to afforda hold for the plaster, when used, or in which wooden strips may beinserted, to which wainscoting or other work may be secured. This,however, I do not claim as part of my invention.

It should be understood that the use of the mortar or other bindingmaterial and the felt or other insulating strips may be dispensed .withwhen desired; that the tongues and 1. A brick or building-blockcomprising a comparatively thin body having flaring sides and acomparatively thick longitudinal dovetail tongue or projection,substantially as debricks on the courses above and below, and

scribed.

2. A brick or building-block comprising a bod T havin flarin sides androoves or channels on its broad face; and a longitudinal dovetail tongueor projection on said face,

substantially as described.

A wall or partition composed of courses of bricks, each comprising acomparatively thin bod yhaving flaring sides and a comparatively thicklongitudinal dovetail tongue or projection adapted to engage the flaringsides of the bricks oppositely arranged on the courses above and below,and be flush with the outer faces thereof, thereby producing interiorspaces between the bricks, substantially as described.

4;. A wall or partition composed of courses of bricks, each comprising acomparatively thin body having flaring sides and grooves or channels onits broad face; a comparatively thick longitudinal dovetail tongue orprojection adapted to engage the flaring sides of the bricks oppositelyarranged on the courses above and below, and be flush with the outerfaces thereof, thereby producing interior spaces between the bricks; andcement or other binding material between the dovetail tongues andflaring sides, substantially as described.

5. A wall or partition composed of bricks, each comprising acomparatively thin body and a comparatively thick tongue or projection,adapted to lie between the bodies of the be flush with the outer facesthereof, thereby producing interior spaces between the bri cks, andstrips of felt, paper, wood or analogous insulating substance withinsaid spaces, substantially as described.

Signed at New York, in the county of New York and State of New York,this 1 filth day of July, A. D. 18.)5.

GUSTAV LIEBAU.

Witnesses:

HENRY SMITH, FnEDERIo CARRAGAN.

